Yarn package support



March 18, 1952 T. M. HURsT 2,589,389

YARN PACKAGE SUPPORT Filed March 4. 194e Hill mlm-PJ Il IN VEN TOR.

THOMAS M H U RST.

Patented Mar. 18, 1952 YARN PACKAGE SUPPORT ThomasV M. Hurst, Rock Hill, S. C., assignor to Celanese Corporation of America, a corporation of Delaware Application March 4, 1948,` Serial No.`1'3,03'1

4 Claims.

This invention relates to yarn package supports and relates more particularly to a bobbin comprising a demountable assembly of interchangeable bobbin elements.

Bobbins commonly employed in the textile art generally consist of a central barrel and provided at one or both ends with a suitable flange integral with the barrel, depending upon the type of yarn package to be formed. The flange or flanges may be glued or nailed to the barrel or provided with screws for holding the flange and barrel in fixed relationship. In some instances the flange or anges and the barrel may comprise an integral unit formed by molding or by turning operations and the like. The yarns are wound on to the barrel of the bobbin and the yarn package formed may then be employed for warping. coning, pirning, or other textile operations where the yarn is removed from the bobbin barrel and re-wound to form another type of yarn package. Bobbins of the type described are normally reused a large number of times and are frequently subjected to rather rough handling. Such rough handling frequently injures the flanges and/or the barrel of the bobbin to such an extent that the bobbin can no longer be employed to form yarn packages which will be entirely satisfactory. Such damaged bobbins are usually discarded since the time involved in dis-assembling them for repair or replacement of parts makes such an operation entirely uneconomical. This is particularly true of bobbins in which the several elements are glued or nailed together. Where the damaged bobbin is molded or formed as a single, integral unit any repairs are out of the question.

It is, accordingly, an important object of this invention to provide a bobbin comprising a demountable assembly of interchangeable bobbin elements adapted to be dis-assembled easily and quickly whereby damaged elements of said assembly may be readily replaced.

Other objects of this invention, together with certain details of construction and arrangement of parts, will appear from the following detailed description and the accompanying drawing.

In the drawing wherein a preferred embodiment of my invention is shown:

Fig. l is an elevational View, partly broken away and partly in section, showing my novel bobbin in assembled form;

Fig. 2 is a sectional plan view of the bcbbin taken along the line 2 2 in Fig. 1 in the direction of the arrows;

Fig. 3 is an elevational view, partly broken away, of the element forming the barrel of said bobbin assembly;

Fig. 4 is a detail view of a retaining ring element employed in forming my novel bobbin assembly; and

Fig. 5 is a View in perspective of a flanged end element of my novel bobbin structure.

Like reference numerals Yindicate like parts throughout the several vie'ws of the drawing.

Referring now to the drawing, and more particularly, to Fig. l, the bobbin assembly of 'my invention, generally indicated by reference nu'- meral 5, comprises a barrel 6 provided with a base ange 'I having integral therewith a bush'- ing 8, said flange and bushing having a hole 9 drilled therethrough which is adapted to receive the driven spindle (not shown) by means of which the bobbin is rotated when yarn is wound thereon. Flange 'I is recessed at Ii) to receive the lower end of barrel 6. This structure prevents any of the yarn windings on said barrel 6 from being trapped between the inner surface of flange l and the barrel 6. The opposite end of barrel E is provided with a top flange I I formed integral with a bushing I2 and a knob or handle I3. The latter provides the means by which the bobbin 5 may be gripped by an operative either to be placedin position on the spindle 'or doiied during Winding operations. Flange II is recessed at I4 to receive the end of barrel 6 and to provide a tight-fitting joint which avoids the trapping of yarn during winding operations. Flange II, bushing I2 and knob I3 are formed with a central cylindrical hole I5. The free-end surface of knob I3 is provided with an annular recess I6 adapted to receive some form of identification disc (not shown) adapted to carry any necessary information as to the nature of the yarn wound on barrel 6 of bobbin 5.

In order to hold bushing I2 in vfixed relation to barrel said bushing is provided with a circumferential groove I'l adapted to receive a eXible split retaining ring I8 formed of a suitable material such as spring steel, or the like. When the flange and barrel elements forming said bobbin are assembled retaining ring I8 is tted on bushing I2, then compressed, and said elements tted together and-retaining ring I8 then permitted to expand into a circular groove I9 cut in the inner wall of barrel Ii. Bushing I2 is vertically slotted at 2i! so that the internally disposed lugs 2| of retaining ring IB will be easily accessible after retaining ring I8 in circumferential groove I1 is expanded into slot I9. Lugs 2| are 3 provided with holes 22 for a purpose which will hereinafter be described in detail.

Bushing 8 which is integral with lower ange 'I is also held in fixed relation to the lower end of barrel 6 in a fashion similar to that described above in connection with bushing I2. Bushing 8 is provided with a circumferential groove 23 adapted to receive the retaining ring I8 which registers with and expands into 9, circular internal groove 24 when said elements are assembled. Bushing 8 is provided with a vertical slot 25 so that the internally disposed lugs 2l of retaining ring I8 will clear the circumferential groove 23 and be easily accessible.

In order to remove flange 'I from barrel 6, for example, a suitable tool (not shown) is introduced through hole B and registered in the holes 22 provided in lugs 2I of the retaining ring I8. The tool is caused to draw lugs 22 together thus compressing the retaining ring I8 sufficiently to clear groove 24. The bushing 8 and flange 1, integral therewith, may then be withdrawn and separated' from barrel 6. Similarly, top flange II may be removed from barrel 6 by inserting said tool through hole I5, registering said tool in the holes 22, provided in lugs 2l of the retaining ring I8, compressing said retaining ring I8 by drawing lugs 2I together and then slipping barrel B off bushing I2 when the compressed retaining ring has cleared internal groove I9.

The dis-assembled flange and barrel elements may then be quickly reassembled after any damaged elements have been replaced by fitting retaining ring I8 on bushing I2, compressing the retaining ring I8 sufficiently to clear the internal diameter of barrel 6 and then telescoping the parts until retaining ring I8 snaps into internal groove I9 or 24, as the case may be, depending upon whether upper flange II or lower flange 'I, is being replaced. Thus, one or more new flanges may be' placed on barrel B, or, if said barrel is damaged, the latter may be replaced and reassembled with the undamaged upper and lower flanges.

The flange and barrel elements of the novel bobbin of my invention may be formed of wood, metal, metal alloy, vulcanized fiber or of any suitable thermoplastic or thermosetting molding composition which is capable of yielding elements of sufficient lightness and strength to be employed satisfactorily in forming said bobbins. Where a headless package is to be formed, upper flange I I may be replaced by a smooth, lsuitably shaped plug (not shown), the bushing of which may be inserted in barrel 6 and locked in position.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. A yarn package support comprising, in combination, a barrel having an internal groove therein and a flange at at least-one end of said barrel, a bushing fixed to said flange and adapted to be received within said barrel, said bushing having a circumferential groove therein and a, slot communicating with said groove, and a flexible retaining ring adapted to cooperate with said grooves, the construction and arrangement being such that the said retaining ring detachably secures the bushing and flange to said barrel.

2. A yarn package support comprising, in combination, a barrel having an internal groove therein and a flange at at least one end of said barrel, a bushing integral with said flange and ada-pted to be received within said barrel, said bushing having a circumferential groove therein and a slot extending vertically of said bushing and communicating with said groove, and a flexible retaining ring adapted to cooperate with said grooves, the construction and arrangement being such that the said retaining ring detachably secures the bushing and flange to said barrel.

3. A yarn package support comprising, in combination, a barrel having an internal groove therein and a flange at at least one end of said barrel, a bushing integral with said flange and adapted to be received within said barrel, said bushing having a circumferential groove therein and a slot extending vertically of said bushing and cornmunicating with said groove, and a exible, split retaining ring adapted to cooperate with said grooves, the construction and arrangement being such that the said retaining ring detachably secures the bushing and flange to said barrel.

4. A yarn package support comprising, in combination, a barrel and a flange at at least one end of said barrel, said flange being provided with an integral vertically slotted bushing adapted to be fitted within the barrel, and means comprising a circumferential groove in the periphery of said vertically slotted bushing, an internal groove in said barrel and a exible retaining ring provided with perforated lugs register-able in said vertical bushing slot and adapted to cooperate with said grooves, whereby the bushing and flange are detachably secured to said barrel.

THOMAS M. HURST.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 501,427 Kent July 11, 1893 701,934 Riddell June 10, 1902 1,949,144 Corthell Feb. 27, 1934 2,081,331 Hathaway May 25, 1937 

